US2677822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Point-to-point ultrashort wave radio links
Assignee: Office National d'Études et de Recherches Aérospatiales
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Filing: 1948-11-20
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Granted: 1954-05-04
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Expires: 1968-11-20
Abstract
No abstract record available.
Inventors
- 👤 Perilhou Pierre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:50
CPC Classifications
H; H04; H04B; H04B7/00; H04B7/02; H04B7/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2140130A
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FR814561A
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US2257319A
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US2125977A
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US2173858A
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US2245660A
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US2412612A
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US2407310A
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US2446024A
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US2401759A
Cited
US2510687A
Cited
US2479539A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-03 | 1957-11-02 | 1958-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-03 | 1961-11-02 | 1962-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-03 | 1965-11-02 | 1966-05-04 | $7700.00 | Window Closed / Lapsed |